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Magic Squares

Sudoku fanatics: meet your match! Come test your wits in the new, original game from Shufflenet, where you make every row and every column sum to the same number, while using the numbers one through sixteen once, and only once.

Play Online

The new online version now gives you a free Shufflenet Rewards Code if you win! For more about Shufflenet Rewards, click here.

For more information on magic squares and how to create them, check out the Shufflenet Tutorial, found here.

All finished? Continue on the Shufflenet Road Trip!


2016 Puzzle Compilation

As Christmas approaches, we at Shufflenet would like to present to you the final, twelfth Post of Christmas, and also an early present.

Continue reading “2016 Puzzle Compilation”

Winter Block Puzzle Challenge

We challenge you to take on Shufflenet’s winter Block Puzzle. Seven blocks must be arranged perfectly into the square, leaving one remaining piece. But there is a trick. Can you solve it?
Tweet us @ShufflenetWS with the trick, and you’ll receive a Shufflenet Rewards code to redeem a prize!

Start Block Puzzle

Today’s letter:


Stay updated to collect all six!

All finished? Continue on the Shufflenet Road Trip!

Shufflenet Valentine’s Day Puzzle

Happy Valentine’s Day! As our gift to you, we present a special Valentine’s-themed puzzle!

View Answer

Shufflenet Math Puzzles Compilation

Over the last year, Shufflenet has brought you math contests of seven questions. We’ve compiled all of those questions into a single printable booklet:

View & Print

All finished? Continue on the Shufflenet Road Trip!

Shufflenet Bi-Weekly Puzzle #2

View Answer

Fraction Flash Cards

Fraction Flash Cards is a simple tool that helps to challenge yourself to do operations with fractions.

Download & Play

Here is the letter for today:


Star Net

Here is the letter for today:


Magic Squares

What is a Magic Square?

A magic square is a square grid (normally 4×4) with numbers in each cell. The numbers in each row, column, and diagonal all add up to the same number. Normally in magic squares, the numbers in the cells are all different, and are the lowest numbers other than 0. Example: In a 4×4 grid, the numbers would be 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, and 16.

How to Construct a Magic Square

To start, create a grid that has the letters a, b, c, and d in every row, column, and diagonal. An example is shown below.
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